Appliance for use with telephone-transmitters.



G. J. KINTNER. APPLIANCE FOR USE WITH TELEPHONE TRANSMITTERS.

APPLICATION FILED JUNE 1, 1909 Patented Obi). 26,1909.

W00 Wtoz onannns s. mamas, on EW roan, N. 2., AssIGNoR TO THE MINIATURE TELEPHONE Boom 00., on NEW YORK, N; Y., A CORlPORATION or NEW YORK.

JQP I LI'AN 'CE FOR USE WITH TELEPHONE-TRANSMITTERS.

eas 'peo.

Specification ofletteis Patent. Patentgd first, 26, 39%)9.

Application filed June 1, 1909. Serial No. 499,555.

- ilholl'whorn it may concern:

'Be it known that l, CHARLES J. Kix'rNnn,

' a citizenof the United States, and residentof New York, borough of illai'ihattan,county and State of New York have made a new 'ja'nd useful Invention in iippliances for Use with. 'lelephone-Transmitters, of which the I following is a specification.

. My invention is directed-to an improveine'nt intelephone appliances for enabling the users thereof to hold conversation with 'other subscribers in such manner that persons in the same room where the transmitter is located willnot hear any part of the con ycrsation, such appliance, "for instance, asiis disclosed in U. 5%. Patent; ho. 897,084, granted to Orrin l-I. Goodrich, on the 25th day of August, 1908, and it has for its objects, first,

7 to provide an appliance of this generaltype of devices which shall be of a more portable -nature than that disclosed in the before- I inentioiicdpaticnt: second, to provide an appliance 0t this general type which shall be cheaper of coi'istruction and shall enable the user thereof to hang the telephone rece ver directly upon the switching arm of the portable desk telephone with which the same is:

to be used. Third, to provide an appliance or this general type which shall act as a shield or protecting device to the transmitter so as to avoid any damage thereto,

and also be of such a nature that it may quickly be detached therefrom without necessitating the use of screws or other cumbersome appliances which require the use of. tools, etc. for attaching such devices to and detaching them from the transmitter proper. Fourth, to provide a device of this nature which shall be much lighter in its general make-up than is the inclosing telephone booth disclosed in the before-mentioned patent, therel'iy enabling the same to be used with portable telephone sets which are supported upon pivoted arms and adapted to be moved out of the immediate vicinity of the user, such devices being also in well known use.

My invention contemplates asecret telephone appliance which shall be readily applicable to well known forms of portable telephone transmitters in which the receiver is usually hung upon a switching arm pivoted in the supporting standard oi such portable instruments, and is or sueh a structural. nature that upon grasping the standard and conveying the instrument to the mouth of the user for holding conversation, the act/of thus grasping the same simultaneouslyefi'ects tliesecure retention of the secret transmitting appliance in such way that there is no danger of the same becoming detached or disturbed in its relations to the transmitter proper, said device in its entirety being also constructed of materials of such lightness as will not unnecessarily add to the weight of the portable instruments themselves. 5

. For a full and clear understanding of the taken, on the broken line X -X Fig. 1,. andf as seen looking thereat from the top towai'd the bottom of the drawin in the direction of the arrows, a desk -te ephone set being connection therewith shown in position in in dotted lines.

The invention disclosed in the before mentioned patent to Goodrich embodies the idea oi. an appliance for talking to outlying subscribers in such manner tl at'personsin the same room or in close proximity to the person talking shall not'hear any part of the conversation, said appliance being in the natureof a small or miniature telephone booth, in which the portable telephone transmitter like that shown in Fig. 1 of the acconipanying drawings is completely housed, while the receiver is hung upon a hook exterior to the portable booth, said hook being connected through intermediate levers, etc, to the switch changing lever c nstituting a part of the portable set, so=that when the receiver is hung upon the outer hook the transmitter is cut out of circuit and the call bell is in circuit for eli'ecting the usual call. My improvement embraces the idea of simplifying such an appliance through the agency of the means illustrated in the accompanying drawings which will now be described in detail.

1 represents the base, 2 the standard of a well known portable desk telephone provided with a transmitter '3 pivoted at the so I ' phone transmitter mouth piece 4-; the tube base 8 open at one side and provided with a- Side of the base. ll being a semi-circular e or ring of like material adapted to rest upon "tube surrounding the transmitter fits with.

the inner Wall of thetransmission tube 16.-

ont face is provided with see,

top thereof, i being the usual hard rubber transmitter mouth piece and 5 the receiver hung upon the forks T of the circuit changing lever t3 p-ivotally supported. in the standard 2, such a combined set of instruments emhraung the usual well known portable or desk telephones found largely in public use throughout the United States.

My lIIIpIOVLHlQllt embraces a cupshapetl i bottom 1) and a spring latch at the open standard integral with the cup-shaped base 8. It: will be noted that this cup-shaped base 8 and standard it have, respectively, the 6X act contour of the base 1. and of the standard the part 11 being semi-circular or coir cenlrie with said standard.

12 represents wherever used within the standard and the base. a lining of buck-skin, felt, or life soft; pliable material adapted to yield suftieientlf t0.co1istitute.- accurate seat for the base and standard and not; scratch or in any way mar said base or standard.

v I?) is anotch in one side of the standard of sutlieient. length to admit at proper in:. \'ei.\:ent of the switch changing lever (3. l nte ral with this standard l1 are two arms is, which together constitute a fork provided. with pivot pins at its opposite ends (see Fig. 2) adapted to lpivotally support, in exact alineinent with. the pivot pins of the transmitter at the-top of the standard 2, two arms 15, 15 which are integral with or constitute an extension oi a secret transmission tube. it), 1.43 which tube is lined interiorly with one or more layers of sound absorhiug material l'Zsimilarto the material l2, l8 hein i a pad thet'i'onti face o'fi the telephone transmitter and to surround, when put" n place, tne tele- 16 is made pref lily aluminium- It; Wilt'hcsnotefi that that; portion at the reasonable accuracy over the screw-cap of the transmitter and that the felt ring); 18 absolutely closes or shuts oft any possibility of sound Waves passing outward around the body of said transmitter, s

it is a, diaph agar preferably of soft ruboer or like yielding material, provided at its eenter'wit-h a hole or opening having sno stantially the diameter of thetransmitter mouth I0V1(l8d with a beaclQO ieee i and adaptenl to fit Within said month piece, the outer edge of such the 311m as being secured by glue or in any pre erre ay directly to The outer end of this tube 16 is enlarged and theeclge thereof turned inward shown" so as constitute a, front ieee theref ncl this M e tr fission opening to which is el-aeurerl lay 532's of nersens who esrel s. when used with the up rubberor other air inflated e u the proper contour to enable one to u .a the transniiitter tube without others in the same room, this part .i A structure not being substantially zliiierent from that disclosed in the before-mentioned patent.

In using this improved appliance it, only necessary to arrange the transmission tube 16 so that the axis thereof is inclireet; alinement with the axis of the transmitter mouth piece and then slide the contact with each other so that the felt, lining of the smaller encl of the transmitter tube 16 slides freely over the outer face the transmitter; While at the same time cup-shaped base 8 and the seini-eylindra standard 11 moved forward until of the parts in the position show iig', l of the drawing with. the sprin 10 looked at the outer edge of the ones This act causes the outer end of the trans znitter mouth piece. to

place the rulilc '(liaphra under tension. as own; device is now re; iv toruse l sstion nelrl e er i, iertly into he the air iniia' a ri elosetl in the before-menu the complete set stands up or pivoted supporting to hold instr the act, of grasping the stsndern sezniazireular stanc'lsrd 11 part/s firmly together so that conversation might. be effected either While the instrument is stationary or when being moved or held by the nerson talking. V It will be understood, of course, that reason of the felt or other soft lining 1",? of the transr tube and the t iel felt 'her with the sound 1 person other It will also he a telephone eppli en u ly and removed l port-able set by first releasing the latch it) and drawing the ppliance away the set with the hand, it being obvious the tuiie 1t der the elastic influence of the diaphragm 1t) and the'foree used, will readily release itself from the transmitter, While asthe seine timethe device ma beheld b any part of the vertical Stan srcl Ztl unti it is completely released or removed from the set. Itiis also envious that such an appliance is free from any possibility of scratching, marring, or' in any way damaging any partof the purtahleset and that, it actually ai lords a pruteetion to such instruments as to avoid their heingmarrecl by extraneous acts sly henolle tne setnlisnee.

L Meal to any a" eoriber. secret;

I do not limit my invention to the specific structural arrangement disclosed in the accompanying drawings as a number of the features thereof may be departed from and still come within the scope of my claims hereinafter made.

I believe it is broadly new with me to combine a secret telephone appliance with a portable telephone set which may be easily removed therefrom and which is held in position by the act of holding the standard of such a set when the user thereof is holding the instrument in one hand.

\Vhile I prefer to construct the device with the cup-shaped bottom which covers and protects practically one-half of the base of such a set, obviously this bottom may be done away with and the standard 11 alone constitute the means of connection between the set and secret appliance itself, the clasticity of the outer edges of the standard together with the frictional effects of the tube 16 being sutficient to constitute a means of support when the set is standing on a table or other means of support, the fixed relations being rendered also effectual when the set is being held or grasped by one hand of a person speaking through the transmitter.

Having thus described my invention what I claim and desire to secure by Letters Pat ent of the United States'is 1. An appliance for use with portable telephone transmitters, embracing a transmission tube provided with means for frictionally and yieldingly securing it aroundv the mouth piece of the transmitter; in combination with additional means frictionally'connectin the aforesaid means to the support ing standard of said transmitter, substantially as described.

An appliance for use with a portable telephone set, embracing a transmission tube surrounding and inclosing the mouth of the transmitter, said tube being pivotally secured to a vertical standard which frictionally secures it to the supporting standard of the set, substantially as described.

An appliance for-use with a portable telephone set, consisting of a base and standard adapted to partially inclose the supporting base and standard of the set; aninclosing tube which surrounds the transmitter mouth piece, and pivoted connections between the tube and the inclosing standard, substantially as described.

4. An appliance for use with a portable telephone set, embracing a transmission tube which surrounds the transmitter mouth piece; a facial opening at the outer end of said tube a hollow standard adapted to partially surround the standard of the set and grip the same, and pivoted connections between said hollow standard and the aforesaid tube, substantially as described.

' 5. An appliance for use with a portable telephone set, embracing a transmission tube and a sup porting standard connected thereto,

said standard having the conformation or shape of the standard which supports the set, both the tube and the standard being lined with a pliable medium which will prevent, when the appliance is in place, any

damage to the instrument, substantially as described.

6. An appliance for use with a portable telephone set, embracing a transmission tube adapted to surround or inclose the transmitter mouth piece; in combination with means frictionally connected with the stand ard of the set and adapted to be grasped and held by' the hand of a user against said telephone set, embracing a detachable sound concentrating device provided with a facial opening at one end; a pliable sound absorbing ring at the other, and an intermediate yielding diaphragm having a central opening which admits sound waves to the outer end of the mouth piece; in combination with a standard having frictional connection with the standard of the set, and pivoted connections with the aforesaid sound concentrating device, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES J. KINTNER.

Witnesses M. F. Knarmo, Enwann C. ROWLAND. 

